Which category includes iron, zinc, iodine, selenium, copper, manganese, fluoride, chromium, molybdenum, nickel, silicon, vanadium, and cobalt?

• A. Micro / Trace minerals
• B. Macrominerals
• C. Macro Minerals
• D. Vitamins

Answer: (A)

The main idea here is understanding how minerals are grouped by how much the body needs. The elements listed are all trace minerals, which means they are essential in very small amounts used for specific functions—iron for oxygen transport, iodine for thyroid hormones, zinc for immune and enzyme activity, selenium and copper for antioxidant and metabolic roles, and the others supporting various enzymes and processes. In contrast, macrominerals (like calcium, phosphorus, potassium, magnesium, sodium, chloride, and sulfur) are needed in much larger amounts. Vitamins are a different type of essential nutrient altogether—organic compounds, not minerals. So the best category for these elements is Micro / Trace minerals.